Vishay General Semiconductor - Diodes Division P6SMB220CAHE3_A/I
- Part No.:
- P6SMB220CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB220CAHE3_A/I.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
P6SMB220CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 220 V standoff voltage (VWM), 231 V minimum breakdown voltage (VBR), 328 V maximum clamping voltage (VC) at 1.8 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P6SMB220CAHE3_A/I datasheet, P6SMB220CAHE3_A/I pinout, P6SMB220CAHE3_A/I application, or P6SMB220CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and thermal resistance (RθJA = 100 °C/W) for board-level surge protection design.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance enables fast response to ESD and lightning-induced surges.
Rated for repetitive 10/1000 μs pulses at 0.01% duty cycle, it delivers 600 W peak pulse power with derating above 25 °C ambient per Fig. 2. Junction temperature range spans −65 °C to +150 °C, and it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 185 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 209–231 V at 1.0 mA - Confirmed avalanche conduction threshold; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 328 V at IPPM = 1.8 A - Peak voltage seen by protected circuit during worst-case 10/1000 μs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capacity under standardized 10/1000 μs waveform; validates robustness against IEC 61000-4-5 surges. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; informs PCB copper pad sizing (0.2" × 0.2") for thermal management. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; designated by HE3 suffix. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Bidirectional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One terminal of symmetrical PN junction; conducts during negative-going surges relative to cathode reference. |
| Cathode | Transient current entry (positive polarity) | Other terminal of symmetrical PN junction; conducts during positive-going surges - functionally identical to anode in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive subsystems. |
| AEC-Q101 qualified (HE3 suffix) | Validates suitability for automotive powertrain, body control, and ADAS modules requiring long-term field reliability. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), improving protection margin. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking or special handling. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed at connector interface to shunt surge energy before reaching signal conditioning ICs. Use Value: Maintains signal integrity under 12 V/24 V automotive transients up to ±100 V, leveraging 185 V VWM and 328 V VC to avoid false triggering or latch-up. |
Use Scenario: Safeguarding digital input/output channels in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Primary transient suppressor across 24 V DC supply rails and isolated digital signal lines. Use Value: Absorbs 600 W surges without degradation, enabling >100,000 surge cycles per MIL-STD-883H Method 3015.7 when mounted on 5 mm × 5 mm copper pads. |
| Telecom Line Interface | Consumer Appliance Motor Control |
|
Use Scenario: Shielding Ethernet PHY front-end and RS-485 transceivers from induced lightning surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: First-stage protector in multi-tiered surge suppression architecture, preceding GDT or MOV-based secondary stages. Use Value: Fast <1 ps response time limits let-through voltage to ≤328 V, preserving PHY ICs rated for 3.3 V or 5 V operation. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to clamp inductive kickback during PWM switching. Use Value: Withstands repetitive 10/1000 μs surges at 0.01% duty cycle, preventing MOSFET gate oxide damage and reducing EMI filter burden. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | Same VWM (185 V), VC = 328 V, but lower PPPM (600 W same), non-AEC-Q101; RoHS-compliant E3 suffix only. | Lacks automotive qualification; suitable for commercial/industrial use where AEC-Q101 is not mandated. | Select SMBJ220CA for cost-sensitive non-automotive designs requiring identical electrical specs without qualification overhead. |
| 1.5KE220CA | Through-hole TO-218 package; same VWM/VC ratings but higher RθJA (~50 °C/W); 1500 W PPPM rating. | Requires PCB through-hole real estate and wave soldering; better suited for high-energy, low-density layouts. | Choose 1.5KE220CA when board space allows larger footprint and higher single-pulse energy absorption is prioritized over SMT automation. |
Compared with SMBJ220CA and 1.5KE220CA, P6SMB220CAHE3_A/I uniquely combines AEC-Q101 qualification, SMB surface-mount form factor, and verified 600 W surge handling - making it optimal for space-constrained automotive and industrial modules requiring production traceability and reflow compatibility.
Availability
P6SMB220CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection circuits, and consumer appliance motor drives requiring stable component supply across extended product lifecycles.
Supply support for P6SMB220CAHE3_A/I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for robust surge immunity, automated assembly, and long-term stability under thermal and electrical stress.
FAQ
What is the clamping voltage of P6SMB220CAHE3_A/I at its rated peak pulse current?
The P6SMB220CAHE3_A/I has a maximum clamping voltage (VC) of 328 V at 1.8 A peak pulse current (IPPM) under the 10/1000 μs waveform condition. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88370, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB220CAHE3_A/I maintains this clamping performance across its specified operating temperature range.
Is P6SMB220CAHE3_A/I suitable for automotive applications?
Yes, P6SMB220CAHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's P6SMB series datasheet. It undergoes stress testing for temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements, making it appropriate for automotive powertrain, body electronics, and ADAS subsystems. The P6SMB220CAHE3_A/I also meets MSL Level 1 and supports lead-free reflow up to 260 °C.
What does the "CA" suffix indicate in P6SMB220CAHE3_A/I?
The "CA" suffix in P6SMB220CAHE3_A/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB220A), the CA version has no cathode band marking and functions identically in either polarity, simplifying layout for AC-coupled or floating signal paths. This is explicitly defined in the Vishay P6SMB datasheet section "DEVICES FOR BIDIRECTION APPLICATIONS".
What is the thermal resistance of P6SMB220CAHE3_A/I, and how does it affect PCB layout?
The P6SMB220CAHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. This value directly impacts PCB copper area requirements: reducing pad size increases thermal impedance, risking junction overheating during repetitive surges. For reliable operation at full 600 W rating, designers must adhere to the recommended pad layout and consider thermal vias if ambient temperatures exceed 25 °C.
How does P6SMB220CAHE3_A/I compare to older P6SMB220C versions without HE3?
The P6SMB220CAHE3_A/I differs from legacy P6SMB220C variants primarily through AEC-Q101 qualification (enabled by the HE3 suffix) and RoHS compliance. While electrical parameters (VWM, VBR, VC, PPPM) remain identical, the HE3 version includes enhanced process controls, lot traceability, and automotive-grade reliability validation. The "_A/I" ordering code specifies 13" tape-and-reel packaging (3200 units), whereas non-HE3 versions may lack qualification data or use different packaging codes. The P6SMB220CAHE3_A/I is the preferred choice for new automotive and industrial designs requiring documented qualification.
P6SMB220CAHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 185V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 1.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB220CAHE3_A/I FAQ
1.How can I place an order for P6SMB220CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB220CAHE3_A/I on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P6SMB220CAHE3_A/I reliable?
The price and inventory of P6SMB220CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB220CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB220CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB220CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB220CAHE3_A/I?
P6SMB220CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB220CAHE3_A/I order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P6SMB220CAHE3_A/I?
For technical support, including P6SMB220CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB220CAHE3_A/I requirements.
6.How does Aetrix verify that P6SMB220CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB220CAHE3_A/I products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P6SMB220CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB220CAHE3_A/I?
All P6SMB220CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB220CAHE3_A/I, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P6SMB220CAHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB220CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB220CAHE3_A/I Tags

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